Improvement in photograph-burnishers



UNITED STATES PATENT 1 .1 Tric a.

EMILE R. WESTON, OF BANGOR, MAINE, ASSIGNOR TO JOSEPH P. BASS, OF SAME PLACE.

IMPROVEMENT IN PHOTOGRAPH-BURMSHERS.

Specification forming part of Letters Patent l\'o. 162,442, dated April 20, 1875; application filed January 18, 1875.

To all whom it may concern:

Be it known that I, EMILE R. WEs'roN, of Bangor, in the county of Penobscot and State of Maine, have invented certain new and useful .ln'iprovements in Burnishers for Photographs, Soc. 5 and I do hereby declare that the following is a full, clear, and exact description thereof, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac compan yin g drawings, forming a part of this specification, in which- Figure 1 shows a bottom plan of burnishingtool plate 5 Fig. 2, section of same on line a? a); Fig. 3, view ct bed-plate and standard, with a partial section of burnishing-tool plate on line y y. Fig. 4. shows a view of tail-piece of the bi'unishing-tool plate; Fig. 5, a front elevation of the burnishing-machine, showing devices for reciprocating the teed-roll, with details.

Same letters show like parts.

My invention consists of certain improvements in the construction of machines for bur nishing photographs, (to, relating, first, to an improved material for the burnishing tool or plate; second, to the form or the burnishing-tool plate; third, to the means of attachingsaid plate to the supportlng-stainlard,and, fourth, to an improved means of comn'iunicating a twowvay feeding motion to the feed-roll.

.l have discovered during my experiments that a burnishingtool cast from iron, containin g a comparatively large proportion of manganese, such as Eranklinite iron, possesses pecnliar fitness for use in burnishing-machines where the polish is communicated to the article by friction, especially when said tool is to be heated. Iron of this description is hard, capable of receiving a very high polish, and is not liable to scratch, while the manganese contained in it imparts to the tool a peculiar slippcriness not found in other materials. In regard to the form of the plate, it has, hitherto, been usual to make a flange on the front edge of the plate projecting downward, to prevent injury to the card or other article from the smoke or flame from the lamp or gasjet. This construction gives a thick mass of iron across the front close to the thin part of the plate, and, when heat is applied, the thin portion of the plate heats more rapidly, causing unequal expansion, and a liability to break. To obviate this I thicken the plate at its front edge to about the width of the flange hitherto employed, and gradually diminish the thickness toward the rear and sides. This causes the plate to heat more equally, its thin por tions being farthest from the flame, while at the same time the thickness of the iron at the front takes the place of the flange in retaining the flame. This construction is showi in the drawings, Fig. 1, showing the plate a with its thickened portion 1); Fig. 2, showing a section of the thickened portion of the plate on line 00 as; and Fig. 3, a section of same on line y 3 Fig. 1.

Franklinite iron, and iron 0t like description containing manganese, being di'liicult to drill, i attach the burnishiug-tool plate to the standard c, Fig. 3, at the rear of the machine by the device shown in Fig. 4.. The tail-piece of the plate is slotted longitudinally at d, the two side pieces thus formed 0 6 being transversely slotted at f. The upper end of the standard 0 is fitted into the slot cl, and has a hole, g, drilled through it corresponding to the transverse slots ff. (See Fig. 3.) \Vhen the plate is in place, a pin, It, (shown in dotted lines, Fig. 4,) is passed through these slots ff and through the hole 9 in the standard 0, hold ing the plate securely in place.

lily means of causing the teed-roll to reciprocate is shown in Fig. 5, which, at t, shows the roll. Diagonally around its arborj, at one end, extends a groove, Z. In the standard m of the machine is a set-screw, n, extending downward and into this groove.

It is evident that, as the roll is turned, this screw and diagonal groove will communicate a reciprocating motion to it.

In order to make the roll a reciprocating or direct feeding rool at will, I provide a second groove, 0, running straight around its arbor, and a second screw, 1), entering said groove through one of the standards.

If a two-way feed-roll is desired, it may be obtained by raising the pin p from its groove 0, and turning down the screw a into the diagonal groove 6. It the direct forward feed is 2 IGQA LQ preferred, the screw 1) is turned down into its ened at its front edge and growing gradually straight groove 0, and the screw it raised, thus preventing any endwise motion of the roll.

The reciprocating motion may likewise be produced by a screw, 8, passing downward through an extension, w, of the standard at into a diagonal groove, 1', cut around the end of the handle, by which the machine is turned. As, however, the handle is firmly keyed to the arbor of the roll, this would merely be an equivalent to the groove in the arbor.

At the ends of the roll t I place bosses t t. These serve the twofold purpose of keeping the roll from the surface of the burnishingtool, and of keeping a space between them, into which the end of the card may be inserted far enough to give the feed-roll hold enough to draw it through 5 but I do not claim these bosses, as I am aware thatsimilar devices are shown in the patentof Marshall and Marshall, dated July 12,1864. Nor do I claim in this application, broadly, a burnisher-plate provided with a downwardlyprojecting flange across the front edge to protect the picture from the smoke and flame of the heating device used, this feature being substantially the subjectanatter of a previous application of mine now pending, and in interference with a patent granted to Wm. G. Entrekin, December 2, 1873.

My present application relates to a burnisher-plate of peculiar constructionviz, thickthinner toward the rear and side edges, the object being to secure a more gradual heating of the plate, and at the same time protect the picture.

hat I claim as my invention, and desire to secure by Letters Patent, is

1. A burnishing-tool made from F 'anklinite iron or cast-iron containing a large proportion of manganese.

A burnishing-tool plate thickened at its front edge and gradually diminishing in thickness toward the rear and sides, as shown.

3. A burnishing-tool plate provided with a tail-piece, having the slots (1 f f therein, as and for the purposes specified.

at. In a bnrnishing-machine, a feed-roll, 1', provided with a diagonal groove, 1, extending around its arbor, in combination with the screw it in its supporting standard, as shown.

5. The feed-roll i, provided with groove 6 and screw n, in combination with a groove, 0, and set-screw p, as and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 12th day of January, 1875.

E. I". \VESTON.

Witnesses:

J. B. Boss, W11. FRANKLIN SEAVEY. 

